Ventilated shutter



(No Model.)

0. H. PHASE. VENTILATED SHUTTER.

No. 580,990. Patented Apr, 20, 1897.

Attorney UNITED STATES ATENT FICE.

CHARLES H. PEASE, OF CINCINNATI, OHIO.

VENTILATEDASHUTTER.

SPECIFICATION forming part of Letters Patent No. 580,990 dated April 20,1897'.

Application filed November 6, 1896. Serial No. 611,245. (No model.)

To aZZ whom it may concern:

Be it known that 1, CHARLES H. PEASE, a citizen of the United States,residing at Cincinnati, in the county of Hamilton and State of Ohio,have invented certain new and usef ul Improvements in VentilatedShutters; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as Will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to improvements in shades or blinds and has moreparticular re lation to Venetian blinds.

The invention consists of certain novel constructions, combinations, andarrangements of parts, all of which will be hereinafter more fullydescribed and claimed.

' In the accompanying drawings, forming part of this specificatiOmFigure1 represents a perspective View of the blind embodying my invention, theslats of the same being in their horizontal position. Fig. 2 representsa central vertical section through said blind on the line of one of thepulleys. Fig. 3 represents an enlarged detail central verticallongitudinal section through my said improved roller, and Fig. 4represents the supportingbrackets in enlarged perspective.

A in the drawings represents the roller; B B, the slats; O O, theslat-supporting tapes; D,the cord for raising and lowering the blind,and E the cord for opening or closing the blind. The said roller A ispreferably constructed of a plurality of strips of wood so formed as toleave a central longitudinal passage a therethrough. A roda is mountedcentrally within said passage a by means of clips or brackets (1suitably secured to the interior walls of said passage. The ends of saidrod a project sufficiently beyond the opposite ends of the roller A toform trunnions or journals a a adapted to be mounted in suitablebrackets for the support of the roller. The said roller A is providedwith vertical apertures a a that extend through the wall of the sameinto the interior passage a. These passages a are intended toaccommodate antifriction-rollers orbelt-wheels a a said antifrictionrollers being suspended in said apertures by loop-castings a a, that areloosely mounted on the rod 0!, so as to swing from side to side thereon.The

lower portions of the loop-castings a are cut away, as at of, so thatthe cord D, passing through the passage a and over the pulley a will notcontact with the. lower end of said casting. One end of said cord Dpasses over one of said pulleys a arranged at one end of the roller, andthe opposite end of said cord over the pulley a at the opposite end ofsaid roller. A double roller or wheel F is mounted upon one of theextended ends a of the roller by a yoke f, that passes over said end aThis roller is intended to support both of the doubled portions of thecord D as they pass into the passage a of the roller A, and thus preventthem from contacting with the end of said roller. The respective ends ofsaid cord D extend downward from their respective pulley-wheels throughlateral slots 6, cut in the slats B, the lower end of said cord beingsecured to the lowermost slat b, so that when said cord D is pulled saidslat b will be raised until it contacts with the next succeeding slat,which in turn will rise to engage the slat above the same, and so onuntil the entire blind has been raised into contact with the roller A.Said cord may be secured down in position by any desired hook or bracketmounted upon'the window-casing. The said slats B are normally supportedin position by the tapes 0, which extend down from the opposite sides ofthe roller A and are connected at intervals by cross-strips 0, uponwhich said slats B rest. The said roller A is adapted to be rotated soas to wind the strips C upon one side up and lower the strips 0 on theopposite side to open or close the blind by the cord E, which is Woundabout said roller A and extends down upon opposite sides of the same. Itwill be observed that by this arrangementa pulley upon either one or theother side of the cord E will rotate the said roller A either to oneside or the other, thus causing the slats B to either assume ahorizontal position or a vertical position with their edges overlapping.When in their horizontal position, the blind is adjusted forventilation, as the air may readily pass through the same, but when saidslats are raised to their vertical positions the blind is closed againstany such passage of. air or' light. I prefer to construct said roller Aof two or three independent strips of wood, as

by this means said roller maybe more cheaply manufactured and at thesame time answer all purposes in the same perfect degree that a rollermade of one piece would. By this peculiar formation of the roller thesame is prevented from warping, as the grains of the several stripsforming said roller act against each other to prevent such warping.

By the employment of my invention the blind is raised or lowered with aminimum amount of friction and thus the exertion i11- cidental to thisoperation is reduced. to the lowest practical degree.

All the desirable adjustments of a Venetian blind are combined in myimproved device, as the same may be either opened or closed while downin its lowered position or raised into its upper position to leave thewindow altogether clear at will.

The peculiar pivoted construction of the castings supporting the pulleysis necessary because of the shifting positions the roller A is caused toassume, said constructions permitting of said pulleys always beingpendent from their support in a direct vertical plane therewith.

The supporting-brackets G (shown in Fig. 4) are right and left hand,respectively. The right-hand hanger comprises an angularsupporting-bracket provided with screwapertures g and open-topjournal-apertures g and a segmental guiding or guarding flange 9 Theleft-hand hanger is substantially like the right, with the exceptionthat it is turned the other way and has its journal-aperture 9 closed.

By the peculiar construction of my roller the side walls of thepulley-apertures act as guides to hold the pulley-supporting devices inposition and prevent the supporting-cord from jumping the pulleys.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In a Venetian blind, the combination with a hollow roller providedwith a plurality of pulley-aperturesin its side, of arodmounted in saidroller, pulleys mounted upon said rod and lying in the pulley-aperturesand entirely within the circumference of the roller, a plurality ofslats, means for suspending said slats from said roller, andoperatingcords passed through said roller down through thepulley-apertures and over the pulleys and connected to said slats forraising or lowering the same, the construction being such that the wallsof the pulley-apertures hold the pulleys in the proper position andprevent the supporting-cords from jumping from the same, substantiallyas described.

2. In a Venetian blind, the combination with a hollow roller havingpulley-apertures. of a rod mounted within said roller and havingprojecting journal ends, pulley-supporting castings journaled upon saidrod, so as to lie in the pulley-apertures but entirely within thecircumference of the roller, pulleys mounted in said castings, aplurality of slats flexibly connected to said roller, cords passedthrough said roller and over said pulleys and connected to said slats toraise and lower-the same, and means for rotating the roller to open orclose the slats when in their lowered position, substantially asdescribed.

3. In a Venetian blind, the combination with a hollow roller comprisinga plurality of wood strips suitably secured together and formed withpulley-apertures, of a rod mounted in said roller, pulleys mounted uponsaid rod and lying within said nilley-apertures and entirely within thecircumference of the roller, a plurality of slats and cords passingthrough said roller and over said pulleys and connected to said slats,substantially as described.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

CHARLES II. PEASE.

Vitnesses:

WADE Cnsnmo, WM. J. KLEIN.

